The present invention provides methods of preventing, treating or ameliorating one or more symptoms of disorders in which modulation of a subject's immune system is beneficial utilizing a lymphoid tissue inducing agent and an immunomodulatory agent. In particular, the present invention provides methods of preventing, treating or ameliorating a proliferative disorder, an infectious disease, a cardiovascular disease, an autoimmune disorder, or an inflammatory disorder or one or more symptoms thereof comprising administering to a subject in need thereof one or more lymphoid tissue inducing agents and one or immunomodulatory agents. The present invention also provides compositions and articles of manufacture for use in preventing, treating or ameliorating one or more symptoms associated with disorders in which modulation of a subject's immune system is beneficial, including, but not limited to proliferative disorders, infectious diseases, cardiovascular diseases, autoimmune disorders and inflammatory disorders. The present invention further provides methods for screening and identifying lymphoid tissue inducing agents and/or immunomodulatory agents.